Ultrasensitive detection of mode splitting in active optical microcavities

Lina He, Şahin Kaya Özdemir, Jiangang Zhu, Lan Yang

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

Scattering-induced mode splitting in active microcavities is demonstrated. Below the lasing threshold, quality factor enhancement by optical gain allows resolving, in the wavelength-scanning transmission spectrum, of resonance dips of the split modes which otherwise would not be detected in a passive resonator. In the lasing regime, mode splitting manifests itself as two lasing modes with extremely narrow linewidths. Mixing these lasing modes in a detector leads to a heterodyne beat signal whose frequency corresponds to the mode-splitting amount. Lasing regime not only allows ultra-high sensitivity for mode-splitting measurements but also provides an easily accessible scheme by eliminating the need for wavelength scanning around resonant modes. Mode splitting in active microcavities has an immediate impact in enhancing the sensitivity of subwavelength scatterer detection and in studying light-matter interactions in a strong-coupling regime.

Original languageEnglish (US)
Article number053810
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume82
Issue number5
DOIs
StatePublished - Dec 6 2010

Fingerprint

lasing
scanning
sensitivity
scattering
wavelengths
Q factors
synchronism
resonators
thresholds
augmentation
detectors
interactions

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

@article{5e6a6f4b4ee644e5b47a1a9d9eee2e1e,
title = "Ultrasensitive detection of mode splitting in active optical microcavities",
abstract = "Scattering-induced mode splitting in active microcavities is demonstrated. Below the lasing threshold, quality factor enhancement by optical gain allows resolving, in the wavelength-scanning transmission spectrum, of resonance dips of the split modes which otherwise would not be detected in a passive resonator. In the lasing regime, mode splitting manifests itself as two lasing modes with extremely narrow linewidths. Mixing these lasing modes in a detector leads to a heterodyne beat signal whose frequency corresponds to the mode-splitting amount. Lasing regime not only allows ultra-high sensitivity for mode-splitting measurements but also provides an easily accessible scheme by eliminating the need for wavelength scanning around resonant modes. Mode splitting in active microcavities has an immediate impact in enhancing the sensitivity of subwavelength scatterer detection and in studying light-matter interactions in a strong-coupling regime.",
author = "Lina He and {\"O}zdemir, {Şahin Kaya} and Jiangang Zhu and Lan Yang",
year = "2010",
month = "12",
day = "6",
doi = "10.1103/PhysRevA.82.053810",
language = "English (US)",
volume = "82",
journal = "Physical Review A",
issn = "2469-9926",
publisher = "American Physical Society",
number = "5",

}

Ultrasensitive detection of mode splitting in active optical microcavities. / He, Lina; Özdemir, Şahin Kaya; Zhu, Jiangang; Yang, Lan.

In: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 82, No. 5, 053810, 06.12.2010.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Ultrasensitive detection of mode splitting in active optical microcavities

AU - He, Lina

AU - Özdemir, Şahin Kaya

AU - Zhu, Jiangang

AU - Yang, Lan

PY - 2010/12/6

Y1 - 2010/12/6

N2 - Scattering-induced mode splitting in active microcavities is demonstrated. Below the lasing threshold, quality factor enhancement by optical gain allows resolving, in the wavelength-scanning transmission spectrum, of resonance dips of the split modes which otherwise would not be detected in a passive resonator. In the lasing regime, mode splitting manifests itself as two lasing modes with extremely narrow linewidths. Mixing these lasing modes in a detector leads to a heterodyne beat signal whose frequency corresponds to the mode-splitting amount. Lasing regime not only allows ultra-high sensitivity for mode-splitting measurements but also provides an easily accessible scheme by eliminating the need for wavelength scanning around resonant modes. Mode splitting in active microcavities has an immediate impact in enhancing the sensitivity of subwavelength scatterer detection and in studying light-matter interactions in a strong-coupling regime.

AB - Scattering-induced mode splitting in active microcavities is demonstrated. Below the lasing threshold, quality factor enhancement by optical gain allows resolving, in the wavelength-scanning transmission spectrum, of resonance dips of the split modes which otherwise would not be detected in a passive resonator. In the lasing regime, mode splitting manifests itself as two lasing modes with extremely narrow linewidths. Mixing these lasing modes in a detector leads to a heterodyne beat signal whose frequency corresponds to the mode-splitting amount. Lasing regime not only allows ultra-high sensitivity for mode-splitting measurements but also provides an easily accessible scheme by eliminating the need for wavelength scanning around resonant modes. Mode splitting in active microcavities has an immediate impact in enhancing the sensitivity of subwavelength scatterer detection and in studying light-matter interactions in a strong-coupling regime.

UR - http://www.scopus.com/inward/record.url?scp=78649628097&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78649628097&partnerID=8YFLogxK

U2 - 10.1103/PhysRevA.82.053810

DO - 10.1103/PhysRevA.82.053810

M3 - Article

AN - SCOPUS:78649628097

VL - 82

JO - Physical Review A

JF - Physical Review A

SN - 2469-9926

IS - 5

M1 - 053810

ER -